XSS in various backend modules due to (un)escaping in JS notification module

published 2022-05-25 4y ago modified 2024-12-07 last yr.

cvss: —; not scored
cisa kev: Not listed; not in CISA's catalog
epss: —; no score, EPSS covers CVEs only
public exploits: 0; none known

The notification module displaying flash messages unscapes HTML coming from the server, resulting in XSS vulnerabilities with various names and labels of entities (eg. workspace title or media title). This however means you must be a logged in user with respective rights in the first place to leverage the attack vector.

Patch / fix

fixed in 1

packagist neos/neos 5.3.10, 7.0.9, 7.1.7, 7.2.6, 7.3.4, 8.0.2

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Affected packages

ecosystem	package	affected	fixed in
packagist	neos/neos	>=3.3, <5.3.10 >=7.0.0, <7.0.9 >=7.1.0, <7.1.7 >=7.2.0, <7.2.6 >=7.3.0, <7.3.4 >=8.0.0, <8.0.2	5.3.10 7.0.9 7.1.7 7.2.6 7.3.4 8.0.2

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

GitHub Advisory GHSA-jfxf-4frr-9j3q

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.